
public class e011 {
    static int[][] list = {{ 8,  2, 22, 97, 38, 15,  0, 40,  0, 75,  4,  5,  7, 78, 52, 12, 50, 77, 91,  8},
                           {49, 49, 99, 40, 17, 81, 18, 57, 60, 87, 17, 40, 98, 43, 69, 48,  4, 56, 62,  0},
                           {81, 49, 31, 73, 55, 79, 14, 29, 93, 71, 40, 67, 53, 88, 30,  3, 49, 13, 36, 65},
                           {52, 70, 95, 23,  4, 60, 11, 42, 69, 24, 68, 56,  1, 32, 56, 71, 37,  2, 36, 91},
                           {22, 31, 16, 71, 51, 67, 63, 89, 41, 92, 36, 54, 22, 40, 40, 28, 66, 33, 13, 80},
                           {24, 47, 32, 60, 99,  3, 45,  2, 44, 75, 33, 53, 78, 36, 84, 20, 35, 17, 12, 50},
                           {32, 98, 81, 28, 64, 23, 67, 10, 26, 38, 40, 67, 59, 54, 70, 66, 18, 38, 64, 70},
                           {67, 26, 20, 68,  2, 62, 12, 20, 95, 63, 94, 39, 63,  8, 40, 91, 66, 49, 94, 21},
                           {24, 55, 58,  5, 66, 73, 99, 26, 97, 17, 78, 78, 96, 83, 14, 88, 34, 89, 63, 72},
                           {21, 36, 23,  9, 75,  0, 76, 44, 20, 45, 35, 14,  0, 61, 33, 97, 34, 31, 33, 95},
                           {78, 17, 53, 28, 22, 75, 31, 67, 15, 94,  3, 80,  4, 62, 16, 14,  9, 53, 56, 92},
                           {16, 39,  5, 42, 96, 35, 31, 47, 55, 58, 88, 24,  0, 17, 54, 24, 36, 29, 85, 57},
                           {86, 56,  0, 48, 35, 71, 89,  7,  5, 44, 44, 37, 44, 60, 21, 58, 51, 54, 17, 58},
                           {19, 80, 81, 68,  5, 94, 47, 69, 28, 73, 92, 13, 86, 52, 17, 77,  4, 89, 55, 40},
                           { 4, 52,  8, 83, 97, 35, 99, 16,  7, 97, 57, 32, 16, 26, 26, 79, 33, 27, 98, 66},
                           {88, 36, 68, 87, 57, 62, 20, 72,  3, 46, 33, 67, 46, 55, 12, 32, 63, 93, 53, 69},
                           { 4, 42, 16, 73, 38, 25, 39, 11, 24, 94, 72, 18,  8, 46, 29, 32, 40, 62, 76, 36},
                           {20, 69, 36, 41, 72, 30, 23, 88, 34, 62, 99, 69, 82, 67, 59, 85, 74,  4, 36, 16},
                           {20, 73, 35, 29, 78, 31, 90,  1, 74, 31, 49, 71, 48, 86, 81, 16, 23, 57,  5, 54},
                           { 1, 70, 54, 71, 83, 51, 54, 69, 16, 92, 33, 48, 61, 43, 52,  1, 89, 19, 67, 48}};

    public static void main(String[] args) {
		long sTime = System.currentTimeMillis();
        int biggest = 0;
        for (int x = 0; x < 17; x++) {
            for (int y = 0; y < 17; y++) {
                int down = down(x, y);
                int downDiag = downDiag(x, y);
                int right = right(x, y);
                if (down > biggest) {
                    biggest = down;
                }
                if (downDiag > biggest) {
                    biggest = downDiag;
                }
                if (right > biggest) {
                    biggest = right;
                }
            }
        }
        for (int x = 19; x > 3; x--) {
            for (int y = 0; y < 17; y++) {
                int upDiag = upDiag(x, y);
                if (upDiag > biggest) {
                    biggest = upDiag;
                }
            }
        }
        System.out.println(biggest);
        long fTime = System.currentTimeMillis();
        System.out.println("Time: " + (fTime - sTime) + "ms");
    }

    static int down(int x, int y) {
        int i = list[y][x];
        int i1 = list[y+1][x];
        int i2 = list[y+2][x];
        int i3 = list[y+3][x];
        return i * i1 * i2 * i3;
    }

    static int downDiag(int x, int y) {
        int i = list[y][x];
        int i1 = list[y+1][x+1];
        int i2 = list[y+2][x+2];
        int i3 = list[y+3][x+3];
        return i * i1 * i2 * i3;
    }

    static int right(int x, int y) {
        int i = list[y][x];
        int i1 = list[y][x+1];
        int i2 = list[y][x+2];
        int i3 = list[y][x+3];
        return i * i1 * i2 * i3;
    }

    static int upDiag(int x, int y) {
        int i = list[y][x];
        int i1 = list[y+1][x-1];
        int i2 = list[y+2][x-2];
        int i3 = list[y+3][x-3];
        return i * i1 * i2 * i3;
    }
}